autosampler glass vials from different sources. In this case 1st hydrolytic class tubes have been used with examples of 33, 51 and 70 expansion type raw glass tubes. • 1 mL 18MΩ HPLC water (Thermo Scientific™ Smart2Pure™ system (P/N 50129845)) was added to the 2 mL vial and capped using Thermo Scientific™